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NANCY H CHASKO MD
NPI 1801094073
Internal Medicine in York, PA

Active since July 10, 2007PECOS EnrolledAccepts Medicare Assignment
25 MONUMENT RD STE 140-145, YORK, PA 17403(717) 741-8003(717) 461-7404 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 13, 2026, Jun 8, 2021 (2 updates tracked since 2021).

About Nancy H Chasko Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NANCY H CHASKO MD (NPI 1801094073) is an individual internal medicine provider in York, Pennsylvania, licensed in Pennsylvania (MD440612) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS, is affiliated with Wellspan York Hospital, and maintains a secondary practice location in York.

NPPES Registry Identity

NPI1801094073
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameNANCY H CHASKOCredential: MD
Location Address25 MONUMENT RD STE 140-145York, PA 17403-5060
Mailing Address601 Memory LnYork, PA 17402-2231 · (717) 851-1405 · Fax (717) 851-6969
Phone(717) 741-8003
Fax(717) 461-7404
Sole ProprietorNo
Medical School CMSOtherGraduated 2007
Enumeration DateJuly 10, 2007
Last NPPES UpdateAugust 13, 20262 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1801094073 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in PA · MD440612
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
25 MONUMENT RD STE 140-145, York, PA 17403
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Secondary Practice Location 1

Location 1370 Saint Charles WayYork, PA 17402-4647 · Phone (717) 741-8003 · Fax (717) 461-7404

Other Identifiers 7

Other306535PA · Unison-wmg
Medicaid102501689PA
Other1591175PA · Gateway-wmg
Other2514548PA · Highmark Bcbs-wmg
Other30080794PA · Amerihealth Mercy-wmg
Other415985PA · Upmc-wmg
Other965756MD · Carefirst Bcbs-wmg

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nancy H Chasko Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537355789
PECOS Enrollment IDI20101130000518
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Nancy Chasko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Wellspan Medical Group
Same address
Internal Medicine
25 MONUMENT RD, SUITE 140-145
York, PA 17403
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 3,080 clinicians in this Medicare group
NPI 1093883084 (717) 741-8003

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
422 services247 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
135 services116 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
74 services74 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
61 services60 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
59 services58 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
27 services27 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Wellspan York Hospital

Acute Care Hospitals · York, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390046
Location1001 South George StreetYork, PA 17403 · York County
Emergency services Birthing friendly

Wellspan Ephrata Community Hospital

Acute Care Hospitals · Ephrata, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number390225
Location169 Martin AvenueEphrata, PA 17522 · Lancaster County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
9 suppliers21 claims46 services$6.32 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
2 suppliers14 claims14 services$88.23 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
2 suppliers14 claims39 services$33.57 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
3 suppliers11 claims11 services$53.08 avg. paid by Medicare
Headgear used with positive airway pressure device A7035
DME-Other DME · category DE001N
4 suppliers14 claims14 services$17.23 avg. paid by Medicare
Tubing used with positive airway pressure device A7037
DME-Other DME · category DE001N
4 suppliers21 claims21 services$14.12 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LAKSHMI SAKUNTALA PASUMARTHY MD
Hospitalist
25 MONUMENT RD STE 140-145
YORK, PA 17403
York County (717) 741-8003

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nancy Chasko's NPI number?

The NPI number for Nancy Chasko is 1801094073. It was assigned to this individual provider in the NPPES registry on July 10, 2007.

Where is Nancy Chasko located?

Nancy Chasko practices at 25 Monument Rd Ste 140-145, York, PA 17403. The listed phone number is (717) 741-8003.

What is Nancy Chasko's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Nancy Chasko enrolled in Medicare?

Yes. Nancy Chasko is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Nancy Chasko's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Chasko reassigns Medicare benefits to Wellspan Medical Group (York, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nancy Chasko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nancy Chasko affiliated with any hospitals?

According to CMS data, Nancy Chasko is affiliated with Wellspan York Hospital and Wellspan Ephrata Community Hospital.

When was this NPI record last updated?

The NPPES record for Nancy Chasko was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.